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Last Asylum: Plague Alliance Duel Strategy Guide: How to Win Every Phase
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The Alliance Duel is the highest-stakes recurring event in Last Asylum: Plague. Six phases, each scoring a different category of progress. The alliances that dominate it aren't necessarily the ones that spend the most during the event. They're the ones that prepared the most before it started.
Most players approach Alliance Duel reactively, spending as each phase opens and hoping their resources hold out. Serious spenders who understand the phase structure operate differently: they hoard resources in the weeks before the event, pre-stage their most expensive actions in advance, and then deploy everything at the highest-scoring moment for each phase.
This guide covers the Alliance Duel research unlock order, the pre-event preparation that separates top-scoring alliances from everyone else, and a phase-by-phase breakdown of where your time and resources actually produce points.
Last Asylum: Plague Alliance Duel Research (unlock this before the event runs)
Alliance Duel research unlocks at Research Lab Level 15. If you haven't reached Lab Level 15 yet, this is the prerequisite that gates your access to the event's research bonuses entirely.
Once unlocked, the research tree for Alliance Duel has a specific unlock sequence that maximizes your event returns. Do not work through it randomly:
Step 1: Rush tier 4-6 reward unlock. This is the first node that meaningfully expands what the event pays out. Getting here fast means every Alliance Duel from this point forward rewards you better.
Step 2: Rush Arena Expert to level 20. Arena Expert is a point multiplier node. Reaching level 20 amplifies scoring across multiple phases. Prioritize this before unlocking the top reward tier.
Step 3: Rush tier 7-9 reward unlock. This is the top reward bracket. Unlocking it is one of the highest-leverage research investments in the game because it permanently upgrades the ceiling of what every future Alliance Duel pays out. Players who skip this are leaving the best rewards inaccessible indefinitely.
Step 4: Rush Arena Expert to level 10 (the remaining levels). Complete the Arena Expert chain after the tier 7-9 unlock.
Step 5: Max everything else. Work through the remaining research nodes after the above four priorities are complete.
The logic behind this order: tier reward unlocks compound across every Alliance Duel you participate in going forward. An early unlock of tier 7-9 rewards doesn't just help one event. It improves every event you'll ever run.
The Pre-Event Principle: Alliance Duel Rewards Preparation, Not Reaction
The single most important Alliance Duel insight for serious spenders: hoarding resources between events is how you maximize rewards with minimal incremental spend.
The Alliance Duel has six phases, each scoring a specific category. Every phase has an action that generates points: building upgrades in the Territory phase, research completion in the Tech phase, hero upgrades in the Hero Growth phase. If you wait until each phase opens to accumulate the resources needed, you're spending at full cost on a compressed timeline.
If you've been accumulating since the last Alliance Duel ended, those same resources were earned or purchased over a full cycle. The deployment cost per point is lower, and you're never scrambling to top up mid-event.
Falcon Quests are the clearest example of this principle. Each Falcon Quest gives 10,000 points when deployed. Players who save their Falcon Quests across the week before Alliance Duel and dump them at the start of each phase score significantly more than players who use Falcon Quests as they earn them. The quests are the same. The timing is the entire difference.
Last Asylum: Plague Alliance Duel Strategy (full breakdown)
Phase 1: Enhance Raven
The opening phase scores Raven-related activity: Raven Essence, Raven Fruit, rallies, Raven Survival Battle participation, and squad activity.
What to do:
- Deploy saved Falcon Quests at the start of this phase for immediate high-point returns
- Use all Raven Essence and Raven Fruit accumulated since the last event
- Send gathering squads outside your Sanctuary to farm RSS; the activity generates points
- Participate in Raven Survival Battle for additional scoring
- Run rally attacks with alliance members
What to save: Keep your building speedups. The Territory Development phase comes next and that is where construction investment scores.
Phase 2: Territory Development
This phase scores building upgrades and construction activity. It is also the phase with the highest potential for pre-event optimization through the pre-build strategy.
The pre-build strategy: If you have buildings that will take more than one day to complete, start them before Phase 2 opens but do not tap the completion hammer. Let the build finish while the phase is inactive, then claim the completion at the start of Phase 2. The points register when you tap the hammer, not when the build finishes. This is one of the most reliable scoring advantages in the entire event and requires no additional spend, only timing.
What to do:
- Use accumulated building speedups on Sanctuary upgrades and building requirements
- Recruit survivors where it generates building or territory points
- Claim any pre-built completions by tapping their hammers at phase start
- Save Falcon Quests for Phase 3
What to save: Do not tap any builds that complete after Phase 2 ends. Hold those completions for Phase 5 (War Preparation), which also scores construction activity.
Phase 3: Tech Research
Phase 3 scores research completions. The same pre-staging logic from Phase 2 applies here: queue research that takes more than one day before the phase opens so it completes during Phase 3 scoring window.
What to do:
- Start any 1-day+ research before Phase 3 opens, ideally timed to complete during Phase 3
- Open all saved Raven gear chests on this day, as gear-related activity contributes to tech scoring
- Use science speedups if your research pipeline needs acceleration
- Deploy saved Falcon Quests at the start of this phase
- Use RSS to score points, but stop once you've hit the point maximum for that resource type
What to save: Training speedups. Troop training scores in Phase 5, not here.
Phase 4: Hero Growth
Phase 4 scores hero investment: star upgrades, hero leveling, skill upgrades, and hero recruitment.
What to do:
- Upgrade hero stars on your primary squad (Arthur, Marlena, and your core roster)
- Level heroes and upgrade skills using accumulated EXP boxes
- Use Universal Shards (UR, SSR, SR) accumulated since the last event
- Open saved Recruit Tickets to add new heroes and score recruitment points
- Participate in Hero Survival Battle for additional points
What to save: Keep training speedups for Phase 5. Save some EXP if you want to score in Hero Survival Battle rather than spending everything here.
The principle: deploy hero investment resources that have been accumulating for weeks, not purchases made during the phase. The point yield per resource is identical regardless of when you acquired it. Preparation determines how much you have to deploy.
Phase 5: War Preparation
Phase 5 scores troop training, construction, and preparation activity.
What to do:
- Deploy saved Falcon Quests
- Use troop training speedups accumulated since Phase 1. Wait for the Troops Training Survival Battle window if possible, as participation multiplies your scoring
- Use remaining building and research speedups
- Claim any build completions that were held over from Phase 2
Timing note: If your troop training takes multiple days, consider starting it before Phase 5 opens so it completes during the scoring window. Same pre-build logic as Phases 2 and 3.
Phase 6: Raid Enemy
The final phase is the PvP and war phase. Scoring comes from attacking enemies, defending, garrisoning alliance members, and rally participation.
If your account is built for offensive play: Attack enemy bases, participate in rallies, and push territory objectives. This is the phase where combat investment from the entire event cycle pays off.
If you're not ready for offensive play or want to protect your troops: Shield before the phase opens. You can still score by garrisoning or defending alliance members who are being attacked, but only do this if you're confident your power level exceeds the attacker. An unsuccessful defense produces losses with no scoring upside.
Phase 6 exists for players who have built toward it. The preparation in Phases 1 through 5 determines whether you can compete offensively when Phase 6 opens.
Alliance Leader Playbook: Coordinating Alliance Duel Across Your Roster
Communicate the phase calendar before the event starts. Members who know Phase 2 scores building and Phase 3 scores research will save the right resources for the right phase. Members who don't will spend building speedups in Phase 3 and have nothing left for Phase 2.
Enforce the pre-build discipline. The single most common Alliance Duel mistake in competitive alliances is members tapping completed builds immediately rather than holding them for the correct phase. Set this expectation explicitly before each event cycle.
Align Falcon Quest deployment. Falcon Quests give 10,000 points each. An alliance where every member saves and deploys Falcon Quests at phase starts generates significantly more collective scoring than one where members use them throughout the week. Coordinate the save window.
Ensure every member has Alliance Duel research unlocked. Members who haven't reached Lab Level 15 or who haven't unlocked the tier 7-9 reward node are scoring below their potential contribution level. Identify these members and make research progression part of your pre-event checklist.
Set clear expectations for Phase 6. Members with underdeveloped troop counts should shield and support defensive operations. Members with strong combat accounts should be coordinated into offensive operations before the phase opens, not improvised during it.
How serious spenders approach Alliance Duel differently...
The Alliance Duel punishes reactive spending and rewards systematic preparation. Every phase has a resource type that generates points. If those resources were accumulated before the event, they deploy at full point value with no marginal spend. If they're purchased during the event under phase pressure, the same resources cost more and contribute the same points.
For players already investing at competitive levels, the question isn't whether to participate fully in Alliance Duel. It's whether your purchase timing is aligned with the event cycle so your resources are stockpiled and ready when each phase opens, rather than being bought under pressure after each phase starts.
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A quick breakdown...
- Alliance Duel research unlocks at Lab Level 15. Unlock sequence: tier 4-6 rewards first, Arena Expert to level 20, tier 7-9 rewards, Arena Expert remaining levels, then everything else.
- Hoarding resources between events is the core strategy. Same resources, more points, less marginal spend per phase.
- Falcon Quests give 10,000 points each. Save them across the week and deploy at the start of each phase, not as you earn them.
- Pre-build strategy: start long builds and research before each phase opens. Don't tap the completion hammer until the relevant scoring phase is active.
- Phase 3 (Tech Research): open all saved Raven gear chests on this day. Start 1-day+ research before the phase so it completes during the scoring window.
- Phase 6 (Raid Enemy): shield if you're not ready for offensive play. Garrison and defend alliance members only if your power exceeds the attacker.
- Top up before the event, not during it. Resources purchased before the phase opens score the same as resources accumulated over weeks.
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A note on accuracy...
Last Asylum: Plague is an actively evolving game. Alliance Duel phase structure, research unlock requirements, and scoring mechanics may shift with updates. Spot something that's off? Let us know on Discord. Mistakes happen. What matters is we fix them.
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